sll1

This mutation was initially identified by its neonatal lethal phenotype in hemizygous male offspring of daughters of X-ray treated male mice in experiments employing the inversion In(X)1H to suppress X Chromosome recombination. It later was found to be associated with a new inversion, designated In(X)3H, whose probable breakpoints are in bands A2 and F1; the phenotype does not segregate from the inversion. (J:16315, J:184888)